You know how your electric cordless kettle gets really black and gross after a few months'/years' worth of use? And no matter how much you scrub, it seems impossible to get rid of the gunk? And you don't really want to use harsh chemicals because you'd be drinking from the same container after?
Have I got a solution for you! And the best part is that it's non-toxic and completely safe for you.
It only requires one ingredient - a lemon. Oh, and water of course.
First you fill your kettle up to its maximum. Then you cut a lemon into about four pieces, squeeze the juice into the kettle and then drop the rest of the squeezed lemon in (yes, rind and all).
Boil the water, then let it cool for about an hour or so (more is fine). Boil again.
And viola! Amazingly clean kettle!
SorryI forgot to take before photos, but trust me, it was black and dark and looked like a cesspit before I gave it the lemon treatment. And the electric element thing at the bottom of the kettle is actually gleaming!